Mars

Mars is a planet in the Milky way, it is close to earth

Translated version
Mars (zh-tw:火星, Latin: Mars), the ancient Chinese called Yinghuo, is the fourth planet of the solar system, the above environment similar to the Earth, but the air is thin, the area is half the earth, with two satellites around Mars, Respectively, as a Phobos and Deimos. August 7, 2012 NASA's NASA space probe Curiosity after landing Mars Gael pit, it was confirmed on Mars had 4.4 billion years ago, the existence of water flow. September 28, 2015 NASA announced the discovery of liquid water, but salt content is high, into the salt water. Mars is a fiery red planet, because the surface is covered with iron oxide. But some people think that Mars is likely to have in the past after a nuclear explosion.